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I just rebuilt a Pac-Man joystick and put a new grommet in, but it just feels too loose to me. Its snap back to center works flawlessly - I don't have any doubt it's a brand new grommet - but again I don't like the feel of it. I've noticed that people often complain about the opposite - having...

Perhaps a silly endeavor, but I'd like to be able to pause my Pac-Man game. I read something on this the other day, and it talked about wiring up remote switches to the pause dip switch and the speaker. But it then said something like "as for turning off the monitor to avoid screen burn, I'm...

Here was my silly little idea that has turned out to be pretty handy. https://dl.dropboxusercontent.com/u/25747163/joust_voltmeter.jpg I have a switcher in a couple of my Williams games (along with an NVRAM for the high scores - works great). With a switcher that can drift over time, I like to...

Hi all - I'm hoping you guys can follow my logic here and give me some pointers. Problem - my Robotron upright is working great except that the screen background has suddenly turned red. Some things I've tried: Swap Q2 and Q3 - no change Was hoping to see the problem go from red to blue...

So let's say I have a Galaga with an almost great monitor. The chassis is recapped with a new flyback, the colors are stunningly bright and the image is rock solid. Only problem is, the tube has bad pac-man burn on it, and I'd like a nice burn-free tube in there. So I think, no problem - I'll...

I would like to get away from the switcher PS that someone had already installed in my Gorf upright, and go back to the linear PS. I was hoping some folks out here could help me. My main reasons for wanting to do this are these 2: 1) Knowledge and the satisfaction of doing it and...

Williams problems with switcher saving high scores/settings - FIX If you're having these problems with Joust, Defender, etc. using a switching power supply, try what I did. I got the NVRAM module from Dale (delroy666) and it's awesome! Works perfectly. It even has a cool feature where you...

Just got in and installed a Joust joystick rebuild from arcadeshop.com MAJOR improvement! Be warned, though - the stick feels so new and different (if yours was pretty sloppy), that it takes some getting used to. But WAY for the better. Also got the Midway logo plate (Gold) for a coin door...

Picked up a Phoenix awhile back and just getting around to tightening things up. The main problem I've noticed is that the graphics sometimes mess up - here's what's happening: On the initial 2 boards with the smaller birds, there seems to be 1 bird that is "stuck" on the screen. If you shoot...

I've noticed my Joust seems to shift the high score table around. At first I saw that every so often it would clear out the bottom 4 scores or so - reset them to 4000 and like some preset initials. But at least all of the other scores remained intact. I was thinking it might do this to...

I think I might have some dirty pots on my WG 4901 monitor chassis and neckboard (red cutoff, black level, etc.) In any case, I would like to replace them. So I was thinking about rather than replacing them directly, I could mount them on one of those little prototype boards from the Shack, and...

I have been wanting to try out a crt rejuvenator, so I just bought this one on eBay: http://www.ebay.com/itm/320851428908?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 Item #: 320851428908 The tubes I have all have the same neck (same as the go7 in my Defender). So what I'm wondering...

I just picked up a Joust. The monitor in it looks to be a TV picture tube. It is: Rauland (Zenith) 19VMCP22 It looks decent, but the problem is the blue color. Red and green are nice and bright, but I just can't get blue to come through very well. There are cutoff pots for each of RGB. But...

I'm having trouble with some diagonal maneuvers in my Robotron. In particular, firing down/left is troublesome. I just can't seem to get the switches adjusted right. I'm wondering if putting small caps across the switches might help - to slightly lengthen their pulse. Has anyone tried...

I have heard that 8264 chips will work for this common ram mod to Williams games. Can someone confirm this? The actual chips I have say this on them: MB8264A-15 8551 M1B

Generally speaking, can a 2716 eprom be used in place of a 2732? I've gleaned from some posts that the thing to do is create a double image (copy /b x+x y), burn that to the 2732, and since it has the same pinout that will work. Does that seem right? My Defender all of a sudden is doing the...

I think I've determined that just about every socket on my Tempest boards is a flake. I keep getting seemingly random errors on the test screen and then I can push on the chip and get it to go away. 1 by 1 I'm replacing them with rock solid mill max strip sockets. And 1 by 1 the chip/socket...

Well, I've just about got my relatively newly acquired Tempest dialed in to shape. Only a few little issues remain. 1 of them is what I'll call the "barber pole" effect. If I go to the test screen color grids, you can see it plain as day - it happens only on the horizontal lines, and only for...

Tempest K6100 fuse F100 - monitor working without it?? I am having this problem with some Tempest screen jitter and it was suggested that I ensure the chassis mounted xsistors were sucurely mounted. After missing it on first inspection, I later noticed that one of them was indeed loose as all...

I really like that game.